Zoe Saldana trades her Na'vi blue for Gamora green in Guardians of the Galaxy. The artists didn't want the green to put people off, and chose the shade to show vibrance and youthfulness. The makeup and prosthetics took five hours every morning.Stuart Wilson—WireImage/Getty Images; Marvel

Zoe Saldana trades her Na'vi blue for Gamora green in Guardians of the Galaxy. The artists didn't want the green to put

See Guardians of the Galaxy's Most Amazing Makeup Transformations

While some characters in Guardians of the Galaxy, like Groot and Rocket, were rendered with computer graphics, the majority of the movie's aliens were transformed by makeup. Over the course of filming, the movie's team of 50 makeup artists applied approximately 1,250 prosthetics between the principal cast and alien extras.